THE EVOLUTION OF GÜLLÜBAHÇE ALLUVIAL FAN (SÖKE/AYDIN) PRELIMINARY RESULTS OF SEDIMENTOLOGICAL AND PALEONTOLOGICAL ANALYSIS
SEDİMANTOLOJİK VE PALEONTOLOJİK ANALİZLER İLE GÜLLÜBAHÇE (SÖKE/AYDIN) BİRİKİNTİ KONİSİNİN GELİŞİMİ: ÖN SONUÇLAR

Author : Rifat İLHAN -- Ertuğ ÖNER
Number of pages : 471-488

Abstract

Preliminary results of the sedimentological and paleontological analysis of the samples taken from the drilling were presented in this study. Drilling was preformed at the junction of alluvial plain and Güllübahçe alluvial fan. The coring depth is 19 m below ground surface. Eighty – one samples for laboratory analyses were taken from the open sediment cores. Sedimentological characteristic of this core was determined using the some sedimentological analysis such as color, magnetic susceptibility and grain size. Color analyzed using SpectraMagic color measurement software package. The magnetic susceptibility of sediment was measured by a Bartington diameter (bart soft program) attached to an external dual frequency sensor. Grain size analysis for drilling was determined using a laser particle size analyzer (LS13320). Grain size parameters (mean, mode, median, standard deviation, skewness and kurtosis) were used to represent the grain size properties of the sediment. Macro and microfossil analysis were carried out for 81 samples. Taken sediment samples were wet-sieved with a 120µ mesh for microfossils analysis of the core samples. Ostracod, foraminifera and mollusca (including gatropada and bivalvia) were picked from the residues of every sample under a microscope. All macro and microfossil have been documented by microscopic photography. Macro and microfossils were found in several of the freshwater, brackish water and marine environments. Different sedimentological analysis and macro – micropaleontological data have been used to understand geomorphological development of the Güllübahçe alluvial fan.

Keywords

Samsun Mountain, Atburgazı Alluvial Fan, Paleogeography, Sedimentological Analysis, Paleontological

Read: 606

Download: 212